US20170331184A1 - Shield housing for HF applications - Google Patents
Shield housing for HF applications Download PDFInfo
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- US20170331184A1 US20170331184A1 US15/595,544 US201715595544A US2017331184A1 US 20170331184 A1 US20170331184 A1 US 20170331184A1 US 201715595544 A US201715595544 A US 201715595544A US 2017331184 A1 US2017331184 A1 US 2017331184A1
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- shield housing
- circuit board
- disposed
- shield
- antenna
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/006—Casings specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier
Definitions
- phase-fixed interconnection of two or more radiator components to form radiator blocks has become common in certain embodiments.
- the effort and expense for the feed network can be reduced by means of combining radiators to form fixed blocks, thereby reducing costs, but also reducing the need for space, the production effort, and the mass of the antenna as a whole.
- the most frequent case is interconnection of two radiators to form a unit. While interconnection using suitable combiners and coaxial cables in the form of strip lines in air is fundamentally usual and continues to be usual in the case of frequency ranges below 1.0 GHz, in recent years implementation with circuit boards has proven itself as a good approach for broadband and cost-advantageous solutions, above all in the frequency range of 1.0 GHz to 4.0 GHz and beyond.
- circuit boards using micro-strip technology have proven to be a good solution approach.
- Coaxial cables or other signal lines which are an integral part of the supply network of the antenna, can be affixed at these interfaces.
- radiator blocks using strip lines is that the interconnect structure of the circuit board is directed more or less in the direction of the main beam direction of the antenna, while the ground surface of the circuit board faces the reflector of the antenna, but is generally capacitively separated from it by means of an electrically insulating varnish, a film or another thin insulator.
- the top of the shield housing is referred to as a lid or a shield lid.
- the placement of the antenna radiators on the top of the shield housing, in other words the lid, will be described later, making reference to the figures.
- the predetermined pin distance amounts to 5 mm ⁇ distance ⁇ 15 mm. This pin distance is advantageous for use in the frequency range from 0.5 GHz to 4.0 GHz, in order to achieve optimal shielding.
- FIG. 1 shows a representation of a shield housing according to an embodiment of the present invention.
- FIG. 5 shows a representation of a system according to an embodiment of the present invention.
- the pins 4 are disposed at a distance that is suitable for achieving a sufficient shielding effect in the desired frequency range.
- the pin distances preferably lie between 5 mm and 15 mm.
- the pin distance can be reduced even further, in order to achieve a suitable shield effect.
- a shield housing 1 which consists of two parts.
- the expansions and components described above and below can be used for both types of shield housings 1 .
- Slight modifications, in order to obtain an adaptation to a one-piece shield housing 1 or a shield housing 1 composed of two parts, are obvious to a person skilled in the art, in and of themselves or from the following description.
- the two parts 101 and 102 of the shield housing 1 are disposed at a distance from one another on the circuit board 2 , preferably with their long sides parallel to one another or next to one another, in such a manner that the required shielding effect is provided.
- the parts 101 and 102 of the shield housing 1 can be configured in such a manner that a part of each antenna radiator 3 is disposed on a part 101 or 102 of the shield housing 1 , in each instance, or on the corresponding lid 11 , or the entire antenna radiator 3 is disposed on only one part 101 or 102 of the shield housing 1 or the corresponding lid 11 .
- the parts 101 and 102 of the shield housing 1 consisting of two parts can be formed in the most different ways, as long as they almost completely cover the open structures of the circuit board 2 , the antenna radiators 3 can be disposed on them, and the desired shield effect is achieved.
- An alternative to the deep-drawn structure in the shield lid or the antenna radiator is to couple an adapter component or additional component capacitively or galvanically with the shield housing 1 or the antenna radiator 3 , as a connection element.
- the connection with the ground surface of the circuit board 2 then also takes place by way of pins or other suitable structures, as described above.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
Description
- This application claims priority to Germany Patent Application No. 10 2016 108 867.6, filed May 13, 2017.
- The invention relates to a shield housing for HF applications, as well as to a connection element, to an antenna radiator, and to a corresponding system.
- For base station antennas in the mobile communications sector, phase-fixed interconnection of two or more radiator components to form radiator blocks has become common in certain embodiments. The effort and expense for the feed network can be reduced by means of combining radiators to form fixed blocks, thereby reducing costs, but also reducing the need for space, the production effort, and the mass of the antenna as a whole. The most frequent case is interconnection of two radiators to form a unit. While interconnection using suitable combiners and coaxial cables in the form of strip lines in air is fundamentally usual and continues to be usual in the case of frequency ranges below 1.0 GHz, in recent years implementation with circuit boards has proven itself as a good approach for broadband and cost-advantageous solutions, above all in the frequency range of 1.0 GHz to 4.0 GHz and beyond.
- In order to supply one or more radiators with the desired electrical signals and to be able to implement suitable input impedances at defined interfaces by way of transformation structures, circuit boards using micro-strip technology have proven to be a good solution approach. Coaxial cables or other signal lines, which are an integral part of the supply network of the antenna, can be affixed at these interfaces.
- The usual implementation of radiator blocks using strip lines (for example micro-strip) is that the interconnect structure of the circuit board is directed more or less in the direction of the main beam direction of the antenna, while the ground surface of the circuit board faces the reflector of the antenna, but is generally capacitively separated from it by means of an electrically insulating varnish, a film or another thin insulator. As a result of this open structure of the circuit board on the radiator side of the antenna, not only the desired properties but also possibilities for undesirable interactions of the circuit board with the radiators as well as the other surroundings, such as the reflector or other electrically conductive structures occur. These interactions can have negative effects, since certain antenna parameters are influenced in disruptive manner and compensation is hardly possible, or only possible within certain limits, with increased effort.
- In order to avoid undesirable interactions of open circuit board structures or, in general, of open conductor structures, usually shields or shield housings are used in electrical technology. Shielding covers or shield housings in different embodiments are used against high-frequency incoming or outgoing radiation on or of circuit boards or open conductor structures. Undesirable influences between different components in a system, for example an antenna, can be avoided in this way.
- The function of a shield housing is fulfilled when the greatest possible shield attenuation is achieved in the working ranges or frequency ranges of the circuit boards or of the (antenna) system to be shielded. Shield housings are widespread in electrical technology, in the most varied embodiments, and different approaches can also be found in antenna technology and filter technology.
- It is the task of this invention to provide shielding for individual radiators or for a radiator block having at least two dipoles, using an open conductor structure, in which disruptive interactions between the conductor structure and the radiators as well as the rest of the antenna are avoided.
- This task is accomplished, according to the invention, by means of the characteristics of the independent claims. Advantageous embodiments are the object of the dependent claims.
- What is proposed, according to the invention, is a shield housing for shielding interconnect structures and/or components disposed on a circuit board, wherein at least two antenna radiators can be disposed on the shield housing, and wherein the shield housing is configured in such a manner that it can cover the interconnect structures and/or components disposed on the circuit board, at least in part, can be connected with a ground surface of the circuit board, and has a region between the antenna radiators, which region is configured in such a manner that it provides electrical decoupling of the feed of the antenna radiators from one another.
- The top of the shield housing is referred to as a lid or a shield lid. The placement of the antenna radiators on the top of the shield housing, in other words the lid, will be described later, making reference to the figures.
- In an advantageous embodiment, the shield housing is configured in such a manner that it can completely cover the interconnect structures and/or components disposed on the circuit board.
- In an advantageous embodiment, a ground is drawn to the ground surface of the circuit board by means of through-contacting on the top of the circuit board, and the shield housing and/or one or more of the at least one lid are directly contacted with the ground at the top.
- Optimized shielding of HF components against undesirable influences or interactions is achieved by means of covering the circuit board with the shield housing and, at the same, decoupling the antenna radiators.
- Furthermore, it is provided that the region between the antenna radiators is a region in the center of the shield housing, which region is configured as an opening having folded areas around the opening in the shield housing.
- Providing a one-piece shielding housing having folded areas situated in the center allows simple and cost-advantageous production of the housing from one piece.
- In an advantageous embodiment, connectors or pins, which are disposed at a predetermined pin distance from one another, are disposed on the folded areas to contact the circuit board.
- Adherence to a predetermined pin distance, which can be calculated as a function of the frequency ranges used, guarantees optimal shielding.
- Furthermore, it is provided, according to the invention, that the region between the feed points of the antenna radiators is configured as a partition wall connected with the shield housing.
- In an advantageous embodiment, the partition wall is electrically connected or coupled with the shield housing, capacitively or galvanically.
- Providing a one-piece shielding housing having a partition wall that is electrically coupled with it, capacitively or galvanically, situated in the center, is an easy to produce and cost-advantageous alternative to providing folded areas.
- Furthermore, it is provided, according to the invention, that the shield housing consists of two parts, which can be disposed on the circuit board at a predetermined shield housing distance from one another.
- Providing a two-part shield housing is an alternative to a shield housing configured in one piece and demonstrates the same advantages.
- Furthermore, it is provided, according to the invention, that the shield housing has connectors or pins on its outer edge for contacting the ground surface of the circuit board, which connectors or pins are disposed at a predetermined pin distance from one another.
- By providing pins at a predetermined distance, reliable attachment of the shield housing on the circuit board, optimized for shielding, can be provided.
- In an advantageous embodiment, the predetermined pin distance amounts to 5 mm≦distance ≦15 mm. This pin distance is advantageous for use in the frequency range from 0.5 GHz to 4.0 GHz, in order to achieve optimal shielding.
- Furthermore, it is provided, according to the invention, that the shield housing has recesses for placement of the two antenna radiators, wherein the shield housing, in the region in which the inner conductor of each antenna radiator is connected with the circuit board, has a structure deep-drawn from it, having at least one connector or pin disposed on it for contacting the ground surface of the circuit board.
- By providing a deep-drawn structure on the shield housing, direct connection of the antenna radiator with the ground surface can take place, without additional holes being required on the top of the shield housing.
- Furthermore, within the scope of the present invention, a connection element for connecting an antenna radiator disposed on the shield housing described above with the ground surface of the circuit board is provided, wherein the shield housing has recesses for placement of the antenna radiator, and wherein the connection element is configured in such a manner that it can be disposed in the region in which the inner conductor of each antenna radiator is connected with the circuit board.
- Furthermore, it is provided, according to the invention, that the connection element is coupled with the shield housing capacitively or galvanically, and has structures by means of which the shortest possible connection between the line system of the antenna radiator and the ground surface of the circuit board can be provided.
- By providing a connection element that is coupled with the shield housing and the circuit board, capacitively or galvanically, direct connection of the antenna radiator with the ground surface of the circuit board can take place without additional holes being required on the top of the shield housing for attaching or soldering the contacts, and without either the shield housing or the antenna radiator having to have a special structure.
- Furthermore, within the scope of the present invention, an antenna radiator is provided for placement of a shield housing as described above, wherein the antenna radiator has an extension of its line system and at least one connector or pin, in order to be contacted with the ground surface of the circuit board.
- By providing a suitable structure on the antenna radiator, direct connection of the antenna radiator with the ground surface can take place without further holes being required on the top of the shield housing.
- Furthermore, within the scope of the present invention, a system is provided, comprising a shield housing as described above and/or a connection element as described above and/or an antenna radiator as described above, which housing or element or radiator is/are disposed on a circuit board, wherein the circuit board has recesses for passing through all the pins and structures to be contacted with the circuit board. Furthermore, the system comprises an adapter plate, which is disposed on the side of the circuit board that lies opposite the shield housing, and a reflector disposed on the adapter plate, wherein the adapter plate is configured in such a manner that it bulges outward at locations at which a connector or pin is passed through the circuit board to the side of the adapter plate, above the connector or pin, and the reflector has an opening at this location.
- Furthermore, within the scope of the present invention, a system comprising a shield housing as described above and/or a connection element as described above and/or an antenna radiator as described above is/are provided, which housing or element or radiator is disposed on a circuit board, wherein the circuit board has recesses for passing through all the pins and structures to be contacted with the circuit board. Furthermore, the system comprises an adapter plate that is disposed on the side of the circuit board that lies opposite the shield housing, and a reflector disposed on the adapter plate, wherein the adapter plate is configured in such a manner that it has a minimum thickness that corresponds to a length of the longest connectors or pins that are passed through the circuit board to the side of the adapter plate, and has an opening at locations where a connector or pin is passed through the circuit board to the side of the adapter plate.
- By providing the adapter plate in the aforementioned embodiments, disruptive influences on the reflector, caused by the pins that penetrate through the circuit board, can be avoided.
- Further characteristics and advantages of the invention are evident from the following description of exemplary embodiments of the invention, using the figures of the drawing, which shows details according to the invention, and from the claims. The individual characteristics can be implemented individually, on their own, or with multiple characteristics in any desired combination, in a variant of the invention.
- Preferred embodiments of the invention will be explained in greater detail below, using the attached drawing.
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FIG. 1 shows a representation of a shield housing according to an embodiment of the present invention. -
FIG. 2 shows a representation of a shield housing according to a further embodiment of the present invention. -
FIG. 3 shows a representation of a shield housing according to a further embodiment of the present invention. -
FIG. 4 shows an enlargement of an additional characteristic on the shield housing according to a further embodiment of the present invention. -
FIG. 5 shows a representation of a system according to an embodiment of the present invention. -
FIG. 6 shows a representation of a system according to a further embodiment of the present invention. - In the following figure descriptions, the same elements or functions are provided with the same reference symbols.
- The placement of the antenna radiator on the shield housing and the circuit board depends on the application. In the mobile communications sector, implementation of combined radiators with two orthogonally disposed polarizations is usual. The
shield housing 1 according to the invention was developed in order to be able to electrically decouple the feed of the two polarizations of the radiators from one another. Thisshield housing 1 can achieve the same effect in different embodiments. -
FIG. 1 shows ashield housing 1 according to an embodiment of the present invention. Theshield housing 1 can be disposed on acircuit board 2 in such a manner that it covers the open conductor structure that is present on thecircuit board 2, as well as additional components completely, i.e. at least in part. The electrical connection between the shield housing and the ground surface of thecircuit board 2 that is required for shielding is implemented, for example, by way of connectors or pins 4 on theshield housing 1. Thepins 4 project through thecircuit board 2 and are electrically connected with, for example soldered to the ground surface of thecircuit board 2 on its underside. The top of theshield housing 1 is referred to as a lid orshield lid 11. Components such as theantenna radiator 3 are disposed on thelid 11. - The
pins 4 are disposed at a distance that is suitable for achieving a sufficient shielding effect in the desired frequency range. For a frequency range from 0.5 GHz to 4.0 GHz, the pin distances preferably lie between 5 mm and 15 mm. For higher frequencies, the pin distance can be reduced even further, in order to achieve a suitable shield effect. - In
FIG. 1 , a preferred embodiment of theshield housing 1 is shown, namely as ashield housing 1 configured in one piece. For decoupling of twoantenna radiators 3 that can be disposed on it, theshield lid 11 is separated and folded over a major portion of its length in the central region between theantenna radiators 3.Additional pins 41 on these folded areas can now also be connected with the ground surface on the underside of thecircuit board 2. A sufficiently good electrical insulation effect of the feeds for two different polarizations, for example, can be achieved by means of this extensive separation of the two shield lid regions. Furtheradditional pins 42 at the folded face sides of theshield lid 11 increase the desired insulation effect even further. - Alternatively or in addition to the solution that the
shield housing 1 configured in one piece comprises a folded region, a similar effect can be achieved by means of an additional component disposed on theshield housing 1, for example in the form of a partition wall in theshield lid 11. This additional component can be electrically connected or galvanically coupled with theshield lid 11. The connection with the ground surface of thecircuit board 2 can also, as described above, take place by way of pins or in another manner, for example capacitively or galvanically. - In
FIG. 2 , ashield housing 1 is shown, which consists of two parts. In both cases, the expansions and components described above and below can be used for both types ofshield housings 1. Slight modifications, in order to obtain an adaptation to a one-piece shield housing 1 or ashield housing 1 composed of two parts, are obvious to a person skilled in the art, in and of themselves or from the following description. - In the case of a
shield housing 1 configured of two parts, as shown inFIG. 2 , the twoparts shield housing 1 are disposed at a distance from one another on thecircuit board 2, preferably with their long sides parallel to one another or next to one another, in such a manner that the required shielding effect is provided. In this regard, theparts shield housing 1 can be configured in such a manner that a part of eachantenna radiator 3 is disposed on apart shield housing 1, in each instance, or on the correspondinglid 11, or theentire antenna radiator 3 is disposed on only onepart shield housing 1 or the correspondinglid 11. Theparts shield housing 1 consisting of two parts can be formed in the most different ways, as long as they almost completely cover the open structures of thecircuit board 2, theantenna radiators 3 can be disposed on them, and the desired shield effect is achieved. - As described for
FIG. 1 , the twoparts shield housing 1 can havepins 4 and/or 41 on one or more outer sides or circumferential sides, by means of which the insulation effect is clearly increased. Also, onepart parts shield housing 1 can have a partition wall disposed on therespective part pins 4. -
FIG. 3 , as an example, shows ashield housing 1 disposed on acircuit board 2, having twoantenna radiators 3 disposed on it, in this case two vector radiators, according to an embodiment of the present invention. Theshield housing 1 is configured in one piece and haspins FIG. 4 , namely that theshield housing 1 has a deep-drawn region on which anelectrical contact 3 with the ground surface of thecircuit board 2 can be produced by way of a pin. - The
antenna radiators 3 disposed on the shield lid of theshield housing 1 are represented as vector radiators here, but can also be other suitable radiators, such as, for example, turnstile antennas on a sheet-metal or circuit-board basis, patch radiators, etc., which are disposed on thecircuit board 2. - For a clear reduction in the mass or of the weight of the entire antenna or module, plastic radiators having a conductive surface produced by means of metallization, for example, can be used.
- The ground surface of the
antenna radiator 3 is coupled with theshield lid 11 capacitively, for example, by way of an insulator such as a varnish, a plastic film or other non-conductive surfaces on the dipole and/or theshield lid 11. Aside from capacitive coupling of theradiators 3 with theshield housing 1, a galvanic connection by means of a screw connection, soldering, pressing in, and other known methods is also possible. - Alternatively to the use of
pins 4 for producing the optimal electrical connection between theshield housing 1 and the ground surface of the circuit board, other types of connections can also be used. For example, through-contacts or vias can be disposed on thecircuit board 2, or suitable capacitive couplings can be provided. - Not only can open electrical conductor structures on the circuit board be covered by means of the
shield housing 1, but rather additional structures or components can also be covered, such as, for example, filters using micro-strip technology, or phase shifter components. If, for example, a filter structure is situated below theshield housing 1, tuning elements for tuning the filter properties can be directly set into theshield housing 1. - To optimize the shielding effect, it can be provided that a connection of coaxial signal lines on the ground side of the circuit board takes place in such a manner that not only the outer conductor but also the inner conductor of the
antenna radiators 3 can be soldered only from one side. Because of this embodiment, no openings are required in theshield lid 11 of theshield housing 1. This means that the ground is drawn by means of through-contacting to the ground surface of the circuit board to the top of the circuit board, and the shield housing and/or one or more of the at least one lid directly contacts the ground at the top. - By means of the structure of the
shield housing 1, it is possible to implement a very flat shield housing having a height of only 3 mm—without pins—wherein in this way, the diagram properties of theantenna radiator 3 are not influenced, or only influenced slightly, i.e. within an acceptable scope. -
FIG. 4 shows an enlarged representation of the further characteristic shown inFIG. 3 of a further embodiment of the invention to improve the shielding properties. The decisive factor for an electrically well implemented connection of theantenna radiators 3 disposed on theshield lids 11 with thecircuit board 2 is to allow an electrical connection of the signal-carrying structures, which are implemented with the least possible spatial expanse. Such an arrangement is shown inFIG. 4 . Theinner conductor 31 of theantenna radiator 3 is lengthened in such a manner that a direct connection with thecircuit board 2 takes place, for example by way of a soldered connection. The ground connection is achieved in that astructure 5 that is deep-drawn above theshield lid 11, on which structure one ormore pins 43 is/are affixed, is provided. - As for the pins described above, a connection with the ground surface by means of soldering is also possible for the
pins 43 of the deep-drawn structure. Thepins 43, like thepins circuit board 2 at holes in thecircuit board 2 provided for this purpose, to the underside of thecircuit board 2. - If the deep-drawn
structure 5 is implemented to be round, it essentially forms an extension of the coaxial system of theantenna radiator 3. - Alternatively to the deep-drawn
structure 5 present in the lid, this structure can also be provided as part of theantenna radiator 3. Here, corresponding pins or other suitable structures for galvanic or capacitive contacting with the ground surface of thecircuit board 2 must then be provided. Furthermore, a sufficiently large hole has to be provided in thecircuit board 2, so that the structure can be passed through thecircuit board 2 on theantenna radiator 3. - An alternative to the deep-drawn structure in the shield lid or the antenna radiator is to couple an adapter component or additional component capacitively or galvanically with the
shield housing 1 or theantenna radiator 3, as a connection element. The connection with the ground surface of thecircuit board 2 then also takes place by way of pins or other suitable structures, as described above. - By means of these embodiments, good electrical values can be achieved, for example for adaptation of the antenna radiators and thereby of the entire module. Furthermore, very good decoupling of the polarization can be achieved by means of the direct connection of the extended coaxial systems with the ground of the circuit board.
- Further optimization of the shielding can take place in that the
pins circuit board 2 are shielded on the back of thecircuit board 2 by means of anadapter plate 6, from thereflector 7 disposed underneath thecircuit board 2, as shown inFIGS. 5 and 6 . -
FIG. 5 shows an embodiment as to howpins circuit board 2 are shielded on the back of thecircuit board 2 by means of anadapter plate 6. In this regard, theadapter plate 6 is disposed above the underside of thecircuit board 2 in such a manner that it has an outward bulge at locations wherepins reflector 7, which is disposed below theadapter plate 6, has a recess or opening at these locations, so that the outward bulge of theadapter plate 6 has sufficient room. The properties of the reflector are not impaired by this solution, and undesirable interference caused by thepins - An alternative to the solution mentioned above is shown in
FIG. 6 . Here, anadapter plate 6 is also provided between thecircuit board 2 and thereflector 7. However, in this embodiment theadapter plate 6 is configured in such a manner that it has a thickness that corresponds at least to the length of thepin reflector 7 can be formed over the entire underside of the circuit board, i.e. no holes need to be drilled into the sheet metal of thereflector 7, so that no disruptive influences act on the reflector. - The
adapter plate 6 in both embodiments can be electrically insulated by means of sufficiently thin films and/or varnish and/or suitable coatings, so that capacitive coupling between the ground surface of thecircuit board 2 and thereflector 7 can be made possible. - The present invention, with its modifications, provides a completely shielded connection of antenna radiators to a circuit board and a sheet-metal reflector, thereby making it possible to avoid undesirable interactions between feed and antenna radiators and the other surroundings. In this way, disruptive influences on the antenna parameters can be avoided.
- Furthermore, additional functions or modules such as filters or phase shifters can be integrated without negative interactions with the antenna radiators or the other surroundings below the shield housing. Also, further functions, which were previously disposed on the back of the reflector, can be provided on the top of the circuit board, under the shield housing. Additionally, further functions such as tuning elements for filters can be integrated into the shield lid.
- Because of the embodiment of the shield housing, capacitively coupled antenna radiators can be used, so that no galvanic connection such as screw contacts or solder connections and no holes in the shield housing are required any longer. Also, because of capacitative coupling, the use of plastic radiators having a conductive surface is possible, so that in this way, the total weight of the module can be reduced.
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- 1 shield housing
- 11 lid
- 101, 102 parts of the shield housing
- 2 circuit board
- 3 antenna radiator
- 31 inner conductor
- 4, 41, 42, 43 pins
- 5 deep-drawn structure
- 6 adapter plate
- 7 reflector
Claims (17)
Applications Claiming Priority (3)
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DE102016108867.6 | 2016-05-13 | ||
DE102016108867.6A DE102016108867A1 (en) | 2016-05-13 | 2016-05-13 | Shield housing for HF applications |
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US20170331184A1 true US20170331184A1 (en) | 2017-11-16 |
US10658748B2 US10658748B2 (en) | 2020-05-19 |
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US (1) | US10658748B2 (en) |
EP (1) | EP3244483B1 (en) |
CN (1) | CN107369883B (en) |
DE (1) | DE102016108867A1 (en) |
ES (1) | ES2758030T3 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170244159A1 (en) * | 2014-11-11 | 2017-08-24 | Kmw Inc. | Mobile communication base station antenna |
US10249940B2 (en) * | 2015-03-16 | 2019-04-02 | Kmw Inc. | Signal distributing/combining apparatus in antenna apparatus of mobile communication base station |
US20210399423A1 (en) * | 2017-04-07 | 2021-12-23 | Skyworks Solutions, Inc. | Radio-frequency module with integrated conformal shield antenna |
EP3920332A4 (en) * | 2019-01-30 | 2022-03-23 | Comba Telecom Technology (Guangzhou) Limited | Base station antenna and phase-shifting and feeding device thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10862223B2 (en) * | 2018-06-25 | 2020-12-08 | Pc-Tel, Inc. | Dual antenna support and isolation enhancer |
WO2022207077A1 (en) * | 2021-03-30 | 2022-10-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobile communication antenna |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050219140A1 (en) * | 2004-04-01 | 2005-10-06 | Stella Doradus Waterford Limited | Antenna construction |
US7362285B2 (en) * | 2004-06-21 | 2008-04-22 | Lutron Electronics Co., Ltd. | Compact radio frequency transmitting and receiving antenna and control device employing same |
US20080252552A1 (en) * | 2004-05-28 | 2008-10-16 | Uhland Goebel | Antenna Housing and Antennas with Such Antenna Housings |
US20150200445A1 (en) * | 2014-01-13 | 2015-07-16 | Cisco Technology, Inc. | Antenna Co-Located with PCB Electronics |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1938332B2 (en) * | 1969-07-28 | 1976-02-19 | Hochfrequenzverstärker in Kammerbauweise und Verfahren zu seiner Herstellung Kathrein-Werke KG, 8200 Rosenheim | HF amplifier with several shielded chambers - has components dividing wall sections fitted onto printed cct board |
DE9318909U1 (en) * | 1993-12-09 | 1995-04-06 | GKR, Gesellschaft für Fahrzeugklimaregelung mbH, 71701 Schwieberdingen | Shielding hood for circuit boards |
US5633786A (en) * | 1995-08-21 | 1997-05-27 | Motorola | Shield assembly and method of shielding suitable for use in a communication device |
JP2894325B2 (en) * | 1997-06-25 | 1999-05-24 | 日本電気株式会社 | Electronic circuit shield structure |
IES991113A2 (en) * | 1998-12-22 | 2000-09-06 | Hi Key Ltd | A radio receiver |
US6329949B1 (en) * | 2000-03-09 | 2001-12-11 | Avaya Technology Corp. | Transceiver stacked assembly |
IL197906A (en) * | 2009-04-05 | 2014-09-30 | Elta Systems Ltd | Phased array antennas and method for producing them |
CN102308437B (en) * | 2009-05-26 | 2013-09-11 | 华为技术有限公司 | Antenna device |
CN102104203B (en) * | 2009-12-21 | 2014-06-11 | 摩比天线技术(深圳)有限公司 | Multi-band dual-polarized antenna oscillator and antenna system thereof |
US20140016293A1 (en) * | 2012-07-13 | 2014-01-16 | Wisol Co., Ltd. | High frequency module having surface acoustic wave device and method for manufacturing the same |
DE102012213520B4 (en) * | 2012-08-01 | 2024-06-06 | Robert Bosch Gmbh | Housing for a circuit board and electrical device |
US8907849B2 (en) * | 2012-10-12 | 2014-12-09 | Harris Corporation | Wafer-level RF transmission and radiation devices |
US9271431B2 (en) * | 2013-03-15 | 2016-02-23 | Apple Inc. | Electronic device having connector with integrated shielding |
CN104900987B (en) * | 2015-05-13 | 2019-01-29 | 武汉虹信通信技术有限责任公司 | A kind of broadband radiating unit and aerial array |
CN104916910B (en) * | 2015-06-12 | 2018-06-22 | 华南理工大学 | Dual-polarized base station antenna based on coupling feed structure |
-
2016
- 2016-05-13 DE DE102016108867.6A patent/DE102016108867A1/en not_active Withdrawn
-
2017
- 2017-04-13 EP EP17166585.4A patent/EP3244483B1/en active Active
- 2017-04-13 ES ES17166585T patent/ES2758030T3/en active Active
- 2017-05-12 CN CN201710335345.6A patent/CN107369883B/en active Active
- 2017-05-15 US US15/595,544 patent/US10658748B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050219140A1 (en) * | 2004-04-01 | 2005-10-06 | Stella Doradus Waterford Limited | Antenna construction |
US20080252552A1 (en) * | 2004-05-28 | 2008-10-16 | Uhland Goebel | Antenna Housing and Antennas with Such Antenna Housings |
US7362285B2 (en) * | 2004-06-21 | 2008-04-22 | Lutron Electronics Co., Ltd. | Compact radio frequency transmitting and receiving antenna and control device employing same |
US20150200445A1 (en) * | 2014-01-13 | 2015-07-16 | Cisco Technology, Inc. | Antenna Co-Located with PCB Electronics |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170244159A1 (en) * | 2014-11-11 | 2017-08-24 | Kmw Inc. | Mobile communication base station antenna |
US10622706B2 (en) * | 2014-11-11 | 2020-04-14 | Kmw Inc. | Mobile communication base station antenna |
US10249940B2 (en) * | 2015-03-16 | 2019-04-02 | Kmw Inc. | Signal distributing/combining apparatus in antenna apparatus of mobile communication base station |
US20210399423A1 (en) * | 2017-04-07 | 2021-12-23 | Skyworks Solutions, Inc. | Radio-frequency module with integrated conformal shield antenna |
EP3920332A4 (en) * | 2019-01-30 | 2022-03-23 | Comba Telecom Technology (Guangzhou) Limited | Base station antenna and phase-shifting and feeding device thereof |
US12003037B2 (en) | 2019-01-30 | 2024-06-04 | Comba Telecom Technology (Guangzhou) Limited | Base station antenna and phase-shifting and feeding device thereof |
Also Published As
Publication number | Publication date |
---|---|
EP3244483A1 (en) | 2017-11-15 |
DE102016108867A1 (en) | 2017-11-16 |
CN107369883B (en) | 2021-08-27 |
ES2758030T3 (en) | 2020-05-04 |
CN107369883A (en) | 2017-11-21 |
US10658748B2 (en) | 2020-05-19 |
EP3244483B1 (en) | 2019-08-21 |
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